Best Buy: Alpine Type-S 15" Dual-Voice-Coil 8-Ohm Subwoofer Black SWS-15D4
SWR-1542D - Alpine 15" Type-R 2000 Watt Dual 4-Ohm Subwoofer
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Alpine - SWR-1542D Subwoofer Serie R de 15" (40cm) (4Ohm+4Ohm)
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Best Buy: Alpine Type-S 15" Dual-Voice-Coil 8-Ohm Subwoofer Black SWS-15D4
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Dynafit Alpine 15L Hydration Pack Black | Trekkinn
Alpine Type-R SWR-1542D 2000W Peak 15" Type-R Series Dual 4-Ohm Sub
